Here you have a link to an interactive book to know more about Christmas and practise your Christmas vocuabulary.
http://chagall-col.spip.ac-rouen.fr/IMG/didapages/christmas/index.html
The recommended film for this Christmas is : "Love Actually"
Lesson plan: http://leoxicon.blogspot.com.es/2013/12/love-actually-activities-ideas.html
Some more Christmas activities: http://www.michellehenry.fr/christmas.htm
http://www.tefl.net/esl-lesson-plans/worksheets-topic.htm
Christmas questions: http://iteslj.org/questions/christmas.html
http://www.tefl.net/esl-lesson-plans/TBW_Christmas_Conversation.pdf
Finally don't forget to check the section of Christmas song at the "songs" section
