Actress Jennifer Aniston has been unsuccessful in producing a top box office hit in the past few years. She's now said to be focusing on her product endorsement and promotional deals instead.

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Aniston, who was last on the big screen with "We're The Millers," has a new advertisement out with Smart Water, where she can be seen wearing a white top and jeans. The fit 45-year-old former Friends star was last seen promoting the brand in a provocative advertisement while posing in bed with only a top on with bed sheets. Sources close to her say that she enjoys working with the brand and her other endorsements so much, that she would rather concentrate on them full time rather than make another movie.

Rumor also has it that Aniston is fed up with the roles being offered to her and that she was most recently "jealous" of Angelina Jolie's success with her Disney film, "Maleficent" which made over $70 million dollars during its first weekend in theaters.

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"She's jealous of the way Angelina's career has gone, and wishes she could open films to the same kind of numbers," a source tells Celebrity Laundry. "Of course, she's also jealous of the global fame and adoration that's followed Angelina since she got together with Brad, and she thinks that she might have had a similar career and following if Brad had stayed with her."

Aniston and her fiancé Justin Theroux have been working on a script themselves, which they hope will match the same success both her ex-husband Brad Pitt and Jolie have had with their latest movies.

Tags: Jennifer Aniston Justin Theroux