naw he's legit. look he made shit movies. He was probably the corniest actor I have ever seen and everytime I watch his movies I vomit/laugh. But that being said he's been studying martial arts for over 40 years. He's a 7th degree black belt in akido. That means he's been into martial arts MUCH longer than me or you.
Look I get it movie stars would seriously have to put in WORK to ever have a chance competing in mma. Having awesome technique and fancy moves doesen't compensate for lack of cardio and sparring/reaction experience. But that doesen't mean that in his 40 years, he hasn't learned a thing or two about fighting. And I guarantee a lot of those techniques haven't been explored and are totally underutilized in mma.
So if machida's dad, a karate master can teach machida a few nifty techniques, or Joe Rogan, a TKD expert/announcer can show GSP how to throw a KILLER spinning back kick, then why can't Stevan Seagal, a movie star/7th degree akido master, with 40 years experience of perfecting technique, show silva and machida how to throw a sickass front kick?
and ya, seagal is a media whore and probably did get his ass whooped by a Judokan. Let me ask you this though, if you put Rogan in the cage with gene lebell in his prime he'd probably get his ass whooped too. But that doesen't mean he still doesen't know how to throw a killer spinning back kick.