Manny Pacquiao -- KNOCKOUT AFTER KNOCKOUT ... At Hollywood Movie Premiere

Manny Pacquiao took over the famous TCL Chinese Theater in Hollywood Tuesday night for the premiere of his new documentary "Manny" ... with some help from big stars and hot models.

Jeremy Piven (who's featured in the movie) hit the red carpet to support the boxer ... along with Christina Milian, Chuck Liddell and Sugar Ray Leonard.

But the eye candy was also in full effect ... thanks to models like Abigail Ratchford, Chantel Zales and Arianny Celeste.