How do you use map and reduce methods to return a key that contains a string?

Question

Beginner JS programmer here(3 weeks): Not sure if my title accurately conveys my problem but I'll print it out below. I was trying to get the longest name(title) in my array. I created the variable longestName which returns just the titles in the array as desired. I then wanted to use a reducer to reduce the array based on length but I received an error. I know the computer isn't wrong and I am sure there is a way to do this, I just haven't been able to put my finger on it yet so here I am.

const movieReviews = [
    {
       title : "Black Adam",
        score : 68,
        year : 2022
    },
    {
       title : "Black Panther",
       score : 99,
       year : 2018
    },
    {
       title : "SpiderMan FFH",
       score : 90,
       year : 2020
    },
    {
       title : "Avatar",
       score : 100,
       year : 2009
    },
    {
        title : "WonderWoman",
        score : 75,
        year : 2019
    },
]



const longestName = movieReviews.map(m =>{
    return m.title;
})
.reduce((name1, name2)=>{
    if(name1.length() > name2.length()){
        return name1;
    }
    return name2;
})