Getting past the doorman
At the studio entrance the doorman stops Seymour: "OI! WE ONLY LET MOVIE STARS IN HERE!!" and throws him back down the steps.
Nudge 1Where to look
Listen to his answer when Seymour says who he is. It isn't about who you are, it's about how you look.
Nudge 2A stronger push
"You look nothing like him." What do film stars wear, even when it isn't sunny?
Nudge 3Almost there
Everything you need is in the first screen of the game.
What you needOther problems to solve first
Solve these first (each opens its own page, no answers on the way):
Show the solutionThe whole answer, with a video
Carry the shades from Seymour's car (see There's a car outside the studio) and walk up to the doorman. He asks for an autograph ("I DONT KNOW HOW ID RECOGNISE YOU WITHOUT THOSE GLASSES!!") and steps aside for good. Walk up the steps and press action at the studio door to go into reception.
Why it works
The doorman's script checks one thing: whether the shades are in Seymour's inventory. After the first time it sets his flag, and the check is skipped from then on.