Channing Tatum and Jonah Hill are on top of the world. Outside the Regency Village Theatre in Westwood, the 22 Jump Street stars stood in DJ booth that towered over the red carpet and hundreds of energetic fans below. Los Angeles premiere for Columbia Pictures and MGM’s sequel was a lively party, and a perfect match for the college-set sequel. The comedy, directed by Phil Lord and Christopher Miller, sees Tatum and Hill reprise their roles as bumbling cops who go undercover at college to infiltrate a drug-dealing operation.