Angry Birds Star Wars Bonus Level #3 (S-3) is unlocked by accumulating 130 stars through gameplay in Star Wars. Once you have accomplished this task, you will be prompted and can either navigate directly to the level or access it via the Bonus Episode. Fire C-3PO straight ahead, triggering his explosion when between the fourth pairing of pigs. Use one more C-3PO to finish off the remaining pigs. This is not an easy level to 3-star, but keep at it!
Go back to the Complete Star Wars Golden Droids & Bonus Level Guide. If you have a different strategy feel free to leave a comment below; however, don't just post your score via the comments, as that's what the leaderboards are for.