Jennifer Aniston Engaged to Justin Theroux

American Cinematheque | Beverly Hills, Oct. 14
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"He never let his career get in the way of his commitment to hard-core, classic, grade-A drugs," joked Jennifer Aniston (with Justin Theroux) of Robert Downey Jr.

The couple, who co-starred in "Wanderlust" earlier this year, have been dating for more than a year.

Jennifer Aniston is ready to walk down the aisle again.

The actress got engaged to her boyfriend, actor-screenwriter Justin Theroux, on Friday.

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"Justin Theroux had an amazing birthday on Friday, receiving an extraordinary gift when his girlfriend, Jennifer Aniston, accepted his proposal of marriage," his rep told People, which first reported the news.

Aniston, 43, and Theroux, who turned 41 two days ago, have been dating for more than a year. They co-starred in the comedy Wanderlust, which hit theaters earlier this year.

Aniston was previously wed to Brad Pitt; their five-year marriage ended in 2005.

Before dating Aniston, Theroux was in a longtime relationship with costume designer Heidi Bivens.

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Aniston is currently shooting the comedy We're the Millers with Ed Helms and Jason Sudeikis. It's scheduled to hit theaters next year.

Theroux, whose writing credits include Iron Man 2 and Tropic Thunder, has written a script for a Zoolander sequel with Ben Stiller and is attached to direct.