Every once in a while there's a property in film, tv, whatever that is so hot that everybody wants in on it, making it seem like it could be the Licensing Holy Grail. This is very common when a popular franchise is first being adapted to the screen or given a Continuity Reboot.
It doesn't always have to be acting roles, however. Sometimes major events can result in many different studios trying to cash in on the group or person in particular. Dueling Movies if several productions are set up at the same time, and Follow the Leader if it results in a new genre or subgenre.
The Leonardo DiCaprio-produced live action AKIRA adaptation caught some flack after only white actors were revealed to be in contention for the leads: Robert Pattinson, Andrew Garfield and James McAvoy for Tetsuo and Garrett Hedlund, Michael Fassbender, Chris Pine, Justin Timberlake and Joaquin Phoenix for Kaneda.
One of the most famous casting processes of recent years was the choice of an actress to play the main character of David Fincher's adaptation of The Girl with the Dragon Tattoo, Lisbeth Salander. It seemed just about every young actress wanted in, including Carey Mulligan, Ellen Page, Kristen Stewart, Natalie Portman, Mia Wasikowska, Keira Knightley, Anne Hathaway, Olivia Thirlby, Emily Browning Eva Green, Scarlett Johansson, Sophie Lowe, Sarah Snook, Léa Seydoux, Emma Watson, Evan Rachel Wood, and Katie Jarvis. Eventually, the role went to relative unknown Rooney Mara (who previously worked with Fincher on The Social Network).
The Ur Example for films may be Gone with the Wind. Actresses who tested or were otherwise considered for the Scarlett O'Hara role (eventually filled by Vivien Leigh) included Jean Arthur, Lucille Ball, Tallulah Bankhead, Bette Davis, Claudette Colbert, Joan Crawford, Paulette Goddard, Katharine Hepburn, Olivia De Havilland, Carole Lombard, Norma Shearer, Barbara Stanwyck, Louise Platt, Tallulah Bankhead, Linda Watkins, Adele Longmire, Haila Stoddard, Susan Hayward, Dorothy Mathews, Brenda Marshall, Paulette Goddard, Anita Louise, Margaret Tallichet, Frances Dee, Nancy Coleman, Marcella Martin, Lana Turner, Diana Barrymore, Jean Arthur, Joan Bennett, and Margaret Sullavan. You can watch some of their screen tests here.
Other actors considered for Rhett Butler were Gary Cooper, Errol Flynn and Ronald Colman.
The search for an actress to play Daisy in the 1974 film adaptation of The Great Gatsby was often compared to the casting process of Scarlett O'Hara in Gone with the Wind. Actresses considered included Ali McGraw, Faye Dunaway, Candice Bergen, Katharine Ross, Natalie Wood, and Lois Chiles before it was given to Mia Farrow.
When the film adaptation of the hit book series The Hunger Games was first announced, Chloe Moretz, Mary Matilyn Mouser, Hailee Steinfeld, Abigail Breslin, Lyndsy Fonseca, Saoirse Ronan, Emma Roberts, Kaya Scodelario, Emily Browning and Shailene Woodley were considered for the lead role before Jennifer Lawrence was cast.
Sony's choice to reboot the Spider-Man film franchise caused widespread speculation as to who would play the title role. Josh Hutcherson, Logan Lerman, Jamie Bell, Michael Angarano, Alden Ehrenreich, Aaron Johnson, and Anton Yelchin were rumored before Andrew Garfield was cast.
Even more actresses were considered for the part of Gwen Stacy, including Mia Wasikowska, Teresa Palmer, Dianna Agron, Imogen Poots, Emma Roberts, Lindsay Lohan, Lily Collins, Ophelia Lovibond, Mary Elizabeth Winstead, Georgina Haig, Hilary Duff and Dominique McElligott.
The Star Wars prequels had this with the casting of Anakin Skywaker - Ryan Phillipe, Colin Hanks, Paul Walker, Chris Klein, Leonardo DiCaprio. The part ultimately went to Hayden Christiansen.
Following the assassination of Osama Bin Laden by US special forces, several film studios decided to cash in with films based on the exploits of Navy SEALs:
Disney attempted to trademark "SEAL Team 6" (the name of the antiterrorist strike team who killed Bin Laden) in an attempt at exclusive merchandising rights as well as the development of an "official" Seal Team 6 tv show. After much controversy, though, they withdrew their application and allowed the Navy to register it.
Relativity Media paid $13 million for the distribution rights (and pledged a further $30 million for marketing) to Act of Valor, an independent thriller written by the screenwriter of 300 and starring actual Navy SEALs.
Robert Pattinson has signed on to star in Mission: Blacklist, a thriller written and produced by the writer of Band of Brothers about the hunt for Saddam Hussein.
Done in-universe in the movie Maxie, with a search for a lead for the remake of Cleopatra.
Most reality shows that rely on volunteer contestants could be considered a form of this. No matter how much controversy or scandal happens during a previous season, open auditions for American Idol will still result in lines of contestants going around the block for a chance at television musical glory.
Parodied on The Late Show with David Letterman where Dave will complain about "when something is popular, everyone wants to jump on the bandwagon." Then he'll show a Fake Commercial for, say, Taco Bell's new Seal Team 6 meal.
Any individual who goes through a phase of Memetic Mutation can easily count. Take Ted Williams, known as "The Homeless Man with the Golden Voice". After being discovered on YouTube in January 2011, it seemed like he was everywhere on the news, talk shows, and magazines for weeks on end.
Five hats means that five tropers think it is ready to publish.
You are saying that you think this draft is ready to be published. That means the description is not ambiguous,
it doesn't duplicate an existing trope, there are at least three examples, and the title makes sense.
Is that what you meant to do?
You are saying this draft has a ready-to-publish hat it does not deserve and you are taking it back.