Sure, here is an example of an invitation to the theater in English:
"Dear [Name],
I would like to invite you to join me for a night at the theater. We will be seeing the latest production of [Name of Play] at [Name of Theater] on [Date] at [Time]. I believe you will thoroughly enjoy the performance and it would be wonderful to have your company. Please let me know if you are able to attend so I can arrange tickets for us.
Looking forward to hearing from you soon.
Best regards,
[Your Name]"