[{movieDetails:{movieId:333,movieName:"movie",},Dates:[{Date:" 01/07/2021",TheaterId:12,Is3D:"false",},{Date:" 09/07/2021",TheaterId:13,Is3D:"false",},{Date:" 03/07/2021",TheaterId:12,Is3D:"false",}]}]

db.collection.aggregate([{"$match":{"movieDetails.movieId":333}},{"$unwind":"$Dates"},{"$match":{"Dates.TheaterId":12}},{"$group":{"_id":"$_id","movieDetails":{"$first":"$movieDetails"},"Dates":{"$push":"$Dates"}}}])