李华想邀请你的朋友john在周六晚上去观看科幻电影 the wandering earth 请用英语给他写一封邮件内容包括：1发出邀请；2介绍电影主题：保护人类共同的家园——地球；观众评价等；3请求回复。注意：1 词数90左右；2 可适当增加细节以使行文连贯。

Dear John,

How are you doing? I'm writing to invite you to watch a science fiction movie called The Wandering Earth this Saturday night.

The movie is about how the human race works together to protect our common homeland - the Earth - from being destroyed by the sun. It's very exciting and thought-provoking. The visual effects are stunning, and the plot is full of twists and turns. I'm sure you'll enjoy it just as much as I did!

I'm really looking forward to seeing this movie with you. Please let me know if you can make it or not.

Best, Li Hu