Jake Gyllenhaal knows he has an uncertain future as an actor and would like to move into writing his own scripts.

The ‘Love & Other Drugs’ star is concerned his acting career won’t always be successful but already has a back-up plan prepared for when he gets older.

He said: “You’re always wondering how long this will last. It’s a piece of being an actor. There’s always someone more talented or younger than you.

“But I also like to write. In years to come, I think that will expand. I won’t just be scrapping for the next job. Maybe I’ll create something for myself.”

Perhaps Jake could consider penning his own comedy after admitting he accepted the role as a Viagra salesman who falls in love with a Parkinson’s disease sufferer – played by Anne Hathaway – in ‘Love and Other Drugs’ because he was so tired of a lack of films that combined laughter and emotion.

He told Britain’s Glamour magazine: “I’m tired of comedies that make you laugh but you don’t buy the emotional side.

“The film has a sense of comedy, but also a sense of something deeper, about the difficulties of being alive.”

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