Corrected entry: When Diana and Steve sail from Themyscira to London, the sails on the boat just hang there, indicating that there is no wind. Sailboats need wind to move and the sails need periodic adjustment depending on from which direction the wind is coming.
Ssiscool
27th Jul 2017
Wonder Woman (2017)
Correction: The sailboat is attached to a steamship or similar in front. That's why Steve said they made some good time.
I just watched the film again. There is no steamship. Where would it have come from?
As they sail into London they're being towed by a steamship.
Correction: In the sequence at night there's no wind, but nor are they moving much - that's sailing for you - if there's no wind you just need to wait and hope. After another scene we then see them arriving in London, with a taught rope off the bow, a steamboat in front clearly towing them, and Steve says "we got lucky, we caught a ride and made some good time".