willofthewisp
Savvy did my sig
I also fail to see how that picture shows a wedding. Pirates of all people wouldn't demand a wedding to get into their secret meetings. They aren't exactly into convention.
Now to Surreal's questions:
"1. We see Davy, Beckett and Will on the beach squaring off with Jack, Elizabeth and Barbossa, yet later on Will seems to have switched sides and Barbossa takes a swipe at Jack. What happens?"
My guess is that Will at some point has been captured since we see him in a walking stockade in the trailer. He probably conjured up a plan ala Jack style where he will appear to betray everyone, but it's a ploy to get free. He probably meets the others on the beach where he switches back to the good side. I don't know about Barbossa. It depends if you believe he is going to redeem himself or if he and Jack are still bitter enough rivals where he will try to get the Pearl again.
"2. Calypso has been released, and the final battle between the pirates and the EITC has begun. Will and Elizabeth are fighting on the deck of a ship. Will proposes. What does Elizabeth say?"
Just my opinion, and I've read no leaked scripts, but marriage proposals are almost constantly interrupted in movies. Will and Liz have probably postponed their engagement until the pirate fuss is all over. Before she can answer him, though, I'm betting one of them will get captured, stabbed, attacked, or thrown overboard. That would be dramatic and raise suspense.
"3. Will and Elizabeth kiss in the midst of battle, seemingly forgetting the battle, the fact that they are being boarded by more enemies and that giant waves are breaking over the ship. Why do they choose that moment to kiss?"
Although that sequence is beautiful, I think it's because one or both of them believe that they won't leave this battle alive. It's not exactly a kiss goodbye but a kiss-me-just-in-case moment. I think Will and Liz believe in an afterlife, so they wouldn't see it as a goodbye.
"4. Will ends up stabbing the heart. Why? How?"
I'm with the majority here that his life depends on stabbing the heart, but you can't overlook the fact he promised his dad he would do it. I'm sure even though Jack may "help" him do it, it's a decision Will would have willingly made.
"5. How does Elizabeth respond to Will stabbing the heart?"
I'm not sure I agree that she would be happy. She would be happy he didn't die, but if they can't be together anyway, I think she would resent the fact that he did that.
"6. What happens after the battle is over?"
Our heroes sail back to Tortuga, accompanied by an escort of navy sailors and pirates alike. They get back to find the whole place has been commercialized, Taco Bells on every corner. Will is now an immortal, enjoying his time on the Dutchman. He's put in a Pirates of the Caribbean ride inside for his crew to amuse themselves with. Meanwhile, back at Tortuga, Norrington WHO LIVED! becomes the new governor and Gibbs brings him Scarlett and Giselle and sailorleo as his concubines. He becomes very rich and Port Royal prospers. Gibbs begins a series of graphic novels about his adventures, touring the world signing autographs. One of them will be made into a best-selling play performed by the Royal Shakespeare Company. Jack begins auditioning for a small role in it, just in the chorus, mind you, to help pass the time after briefly losing Liz to Will. As he stands in a long line waiting his turn as "Asian Pirate #4," who should walk in but Liz, looking high and low for him. He turns, sees her across the room and yells, "What are you doing here?" She yells back, "I love you!" and starts running to him. She bumps into a stagehand, but the guy falls in love with Liz at first sight and doesn't care too much. She finally makes her way to Jack and dives into his arms where they share a Hollywood kiss. Somehow we know Jack will get his role.