SNL's Charlize Theron Episode: 5 Best Scenes

The Mother's Day Game Show; Michelle Obama and Hillary Clinton face off; Barbara Walters drops by, and more...

Charlize Theron took on roles ranging from mousy misfit to bikini bombshell  in a hit-or-miss episode.  Musical guest The Black Keys performed "Fever" and "Bullet in the Brain."

Some highlights...

In honor of Barbara Walter's impending retirement, Weekend Update offers a look back at impressions of her through the years (by castmembers from Gilda Radner to Rachel Dratch to Nasim Pedrad), and gets a visit from Walters herself.

Cat ladies Kate McKinnon and Charlize Theron showcase cats available for adoption. ("Damien is a feline sociopath. It's not that he's evil; it's just that he lacks empathy and commits atrocities...")

Dragon Babies—HBO unveils its new animated children's movie, with lead role voiced by the director's AA sponsor (Mike O'Brien).

"Foreign tourists" Kyle Mooney, Kate McKinnon, Beck Bennett, Charlize Theron, and Bobby Moynihan perplex New Yorkers.

Cold open—Michelle Obama (Sasheer Zamata) and Hillary Clinton (Vanessa Bayer) face off in a special Mother's Day message.

Also: Mom Joanne (Kate McKinnon) hosts The Mother's Day Game Show, in which her three kids (Brooks Wheelan, Kyle Mooney, and Charlize Theron) compete in such categories as "What emails did I send last week?"; Drunk Uncle drops by Weekend Update to discuss graduation season.

NEXT, on May 17: Andy Samberg, with musical guest St. Vincent.