Photos: Hollywood headlines: A week in review

Lea Michele and new beau Matthew Paetz were photographed on a hike in Los Angeles, the first public sign of a relationship after her boyfriend and “Glee” costar, Cory Monteith, died almost a year ago.  (Ben Gabbe / Getty Images)

Shia LaBeouf started treatment for alcohol addiction, his representative said, following recent antics in New York that included his arrest during a production of “Cabaret.” He was charged with disorderly conduct and criminal trespassing.  (Andrew Medichini / Associated Press)

Beyonce, seen above at this year’s Grammy Awards, is still on a hot streak.   (Robert Gauthier / Los Angeles Times)

Oscar-nominated writer-director Paul Mazursky died of pulmonary cardiac arrest at Cedars-Sinai Medical Center in Los Angeles. He was known for movies both funny and tender, including “Bob & Carol & Ted & Alice,” “Blume in Love,” “An Unmarried Woman” and “Down and Out in Beverly Hills.”  (Christina House / For the Los Angeles Times)

Sheriff’s deputies are investigating a report that comedian Katt Williams pulled a gun on a man at the Comedy Store in West Hollywood after an argument, City News Service reported. Authorities responded to a 911 call but said Williams was not present when law enforcement arrived.  (Jason Merritt / Getty Images)

The actor, who has talked about struggling with alcohol and cocaine in the ‘80s, is spending a few weeks at rehab, but not because of a relapse. A spokesman said he is enrolling in a program designed to reinforce sobriety.  (Ricardo DeAratanha / Los Angeles Times)

The 41-year-old actress told Esquire magazine she bared it all for the camera for the first time in “Sex Tape.” “I like being 41. I love it. So much ... just falls away. Fear, mostly,” Diaz said.  (Frazer Harrison / Getty Images for AFI)