Much like he did while Avengers: Age of Ultron was filming – and as Robert Downey Jr. recently did with OmazeMark Ruffalo is offering Avengers fans a once in a lifetime chance. All you have to do to enter? Donate some extra cash to a good cause.

Mark Ruffalo has teamed up with Go Raff this time around to offer fans the following prize:

How would you like to meet me on Marvel’s Avengers: Age of Ultron red carpet?

Help me raise money for Water Defense and for every $5 donated you will be rewarded with one chance to win tickets to Marvel’s Avengers: Age of Ultron Premiere…

The prize includes:

2 x Premiere Tickets
2 x Coach-class round-trip flights
2 nights standard accommodation in shared room
Car Service transportation.
I’ve been a long time supporter of Water Defense! It’s a cause that means a great deal to me, and I hope you’ll take a second to read about it. Click the ‘About Charity’ option to find out more.

I am so grateful for your support and I look forward to meeting one of you very soon!

Best, Mark

And if you haven’t already, be sure to donate to RDJ’s charity of choice, Julia’s House, as well. Donate to something worth your time, and enter for the chance of a lifetime. It’s a win-win for everyone involved.

You have twenty more days to donate to Julia’s House on Omaze, and you have until April 16th to donate to Water Defense through Go Raff.

Source: Go Raff & Mark Ruffalo’s Twitter Page.