1. Repetition (repetition, repetition)
Repetition, or, in simpler terms, giving students a head start, can be a very useful pre-teaching strategy. When planning to show a subtitled film, allow your EAL learners to view the short film twice: once to watch and try and figure out what is happening; then a second time, alongside an adult or peers who are good role models of English, to support any conversations that arise.
During a lesson this could mean that a small group of EAL learners are shown the subtitled film outside of the main classroom space. If students share a common language, they can discuss the film in this language first, to get a shared understanding. They could then join the classroom discussion, where the teacher can show the film to the whole class, pausing regularly and reading the subtitles where appropriate.