It’s West Coast meets West End this spring as Hollywood starstake to the London stage. ”If you’re going to jump in, why notjump in the deep end?” says Jake Gyllenhaal (Donnie Darko), whomakes his stage debut in This Is Our Youth. ”It’s a chance toget one more leg up on this gigantic staircase that is the craftof acting.” A look at the players. — Jeff Chu

HOT TICKET Madonna (last seen on stage in the Broadway run ofDavid Mamet’s Speed-the-Plow), in David Williamson’s Up for GrabsWHERE Wyndham’s Theatre THE RUN May 23-July 13 (previews beginMay 9) CAN YOU GET A TICKET? Not likely COMEDY OR TRAGEDY?Comedy, but the art-world satire could turn tragic if Madge usesher faux-Brit accent.

HOT TICKET Gwyneth Paltrow, in David Auburn’s Proof WHERE TheDonmar Warehouse THE RUN May 9-June 15 CAN YOU GET A TICKET?”Completely and utterly” sold out, says a box office rep. CLASSREUNION The drama, about a genius mathematician’s daughter,reteams Paltrow with her Shakespeare in Love director, JohnMadden.

HOT TICKET Jude Law, in Christopher Marlowe’s Doctor FaustusWHERE The Young Vic THE RUN Through April 27 CAN YOU GET ATICKET? Only if you sell your soul to the devil BROUGHT TO YOU BYNatural Nylon Theatre Company, run by Brit-packers Law, SadieFrost, Ewan McGregor, and Jonny Lee Miller

HOT TICKET Hayden Christensen (pictured), Jake Gyllenhaal, AnnaPaquin, in Kenneth Lonergan’s This Is Our Youth WHERE The GarrickTheatre THE RUN Through April 20 CAN YOU GET A TICKET? Yes(ticket WHO’S FILLING THE SEATS Mostly youngpeople — the show, about rich Manhattan slackers, could be calledThis Is for Youth.

HOT TICKET Joan Rivers in Broke and Alone in London WHERE TheatreRoyal Haymarket THE RUN The one-woman stand-up-comedy show hasperformances April 14, 21, 28. CAN YOU GET A TICKET? Yes, butdon’t even think of arriving fashionably late. WILL MELISSA SEETHE SHOW? According to a rep, Melissa will likely be tied up withher duties at E!

HOT TICKET Kenneth Branagh in William Shakespeare’s Richard IIIWHERE Alas, not in the West End — head about 200 miles north to theCrucible Theatre in Sheffield. THE RUN Through April 10 CAN YOUGET A TICKET? Maybe anon, but for now it’s sold out. ROYAL FLUSHIn his first stage role in a decade, Branagh plays — what else? — anEnglish king.