Angular: Empty Fiddle
http://angularjs.org/
HTML
<script src="https://code.angularjs.org/1.5.8/angular.min.js"></script>
<ul ng-controller="MyCtrl">
<li class="search_results" ng-repeat="movie in movies track by $index">
<div class="movie_info">
<div class="movie_options">
<div class="slide">
<span class="movie_option">
<span><i class="fa fa-question-circle" aria-hidden="true" ng-click="model.displayedIndex = $index">(#{{$index}})</i></span>
</span>
</div>
</div>
</div>
<div class="additional_info" ng-show="$index === model.displayedIndex">
{{movie.overview}}
</div>
</li>
</ul>
JavaScript
var myApp = angular.module('myApp',[]).controller('MyCtrl', MyCtrl);
//myApp.directive('myDirective', function() {});
//myApp.factory('myService', function() {});
function MyCtrl($scope) {
$scope.model = {};
$scope.movies = new Array(10).fill()
.map((_, i) => ({ overview: 'Movie#' + i }));
}