One of actor Alan Rickman's final roles was a voice-over for a video of a tortoise eating a strawberry.

True to the adage, "there are no small roles," his brief performance in the video above may help save the lives of refugees.

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Oxford University students created the ad which will generate ad revenue each time it's played. The proceeds will be donated to refugee relief groups Save the Children and Refugee Council.

Rickman agreed to voice it with the idea that his star-power could help it go viral and raise even more money. It has more than three million views on YouTube currently.

The beloved actor who played Professor Snape in the blockbuster Harry Potter series, among other notable roles, will also appear in at least two movies that finished filming before his death January 14 at the age of 69.

"Eye in the Sky," a thriller that also stars Helen Mirren and "Breaking Bad's" Aaron Paul, hits theaters in March. He will also be the voice of the Caterpillar in Disney's "Alice Through the Looking Glass" coming in May.

(WATCH "This Tortoise Could Save a Life" above, and the two other trailers below)

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