Could this be the Holy Spirit convicting me, or just leftover brainwashing from these guys?
When the holy Spirit convicts you, you do not get a spirit of fear, but a spirit of power to break away from sin. The accuser speaks from worldly/religious point of view, not loving true like Jesus does. Jesus has a lot of regard for us sinners, for He loved us so much that He laid down His life for us so that we could be free with Him instead of enslaved to our desires.
It is for freedom that you have been set free, always remember that in your walk with Jesus. If you find that you do things that are unloving or result in dishonesty or harm, then it is time to go to Jesus and let Him set you free from all of that. Jesus is the Prince of Peace and is there to love you into Heaven through your life down here, not rape you of your good times. To Jesus all the honour!
So thank Him for everything you do, out of an upright compassionate loving heart. For when you live a life of thankfulness to God then sin rarely knocks on the door. Plus His love inside of your heart will set you free from unclean and often painful emotional content. E.g the spirits of fear, hopelessness, despair, disdain, regrets, indecision, secretiveness, guilt, shame, but also the spirits of arrogance, pride, lust, selfishness, envy, greed, dishonesty, hate, racist, sexist, rage, perversion and the likes. This makes loving God and neighbour a whole lot easier.
You don't have to free your heart from such things, He will, if you take it to Him and let Him set you free from that. This is an awesome process where love for God and neighbour is crowned king and selfishness is placed at the end of the line when it comes to salvation. With love for God growing within, sin simply begins to disappear, each day a bit more. This makes thankfulness and love towards God grow and sets us even more apart from our old nature.
So please don't heed what others say about right or wrong. Check the truth for yourself. If you have faith in Jesus and you love God and neighbour then you are doing good, let no one convince you otherwise.
Laying down our lives doesn't mean we stop living in this world. Rather that we don't think how people around us think about material goods, rather we love God and neighbour and make that our daily activity. For we know the earth is the Lord's and everything in it, and we know that the meek inherit the earth. So when you enjoy an activity, food, or person, thank Jesus for those things in your life and share with Him what you find good about it and ask Him to purify it seven times so that it will yield even better fruit/good life in the future.
For do understand our old nature will fight back against the new. Such are the forces we need to defend ourselves against and resist so that we become loving caring and sharing individuals like Jesus was, is and always will be.
As long as watching a movie doesn't stop you from loving God or neighbour than there is absolutely nothing wrong with it. It is all scaremongering. All religious people, who pride in their ability to free themselves from sin, condemn others. Best not be too worried about them. If you have watched a movie with a thankful heart then who can accuse you of wrong?
Who can separate us from Christ? A movie? Doesn't say that in Romans 8, you best be aware of that.
Peace.