07/09/2008 at 09:00 AM EDT
Meet Eddie? Not at the Tuesday premiere of Eddie Murphy's new sci-fi comedy Meet Dave
in L.A., where the star was a surprising no-show.
"He's not here because he's doing a movie and shooting – he goes back-to-back-to-back," producer David T. Friendly told PEOPLE on the premiere's red carpet. "Eddie, he'll never admit it, but he loves to work. And I think work keeps him happy."
Murphy, 47, is shooting the film A Thousand Words, Access Hollywood reports
He has kept a low profile since his sudden split
from Tracey Edmonds last
winter, and recently he talked about retiring from acting. But his Meet Dave
costar Gabrielle Union says the father of seven is "at peace."
"He's a really cool guy," says Union. "His kids were always on set. He's just really cool and at peace with himself." –Nicholas White